//
//  MessageAlert.m
//  XFilesPro
//
//  Created by 青秀斌 on 14-8-15.
//  Copyright (c) 2014年 深圳元度科技有限公司. All rights reserved.
//

#if ! __has_feature(objc_arc)
#error This file must be compiled with ARC. Use -fobjc-arc flag (or convert project to ARC).
#endif

#import "MessageAlert.h"

@interface MessageAlert ()<UITextFieldDelegate>
@property (nonatomic, strong) UIScrollView *messageView;
@property (nonatomic, strong) NSMutableArray *textFields;
@property (nonatomic, strong) NSMutableArray *buttons;
@property (nonatomic, strong) NSMutableArray *actions;
@end

@implementation MessageAlert
@dynamic setTitle;
@dynamic setMessage;
@dynamic addTextField;
@dynamic addBlueButton;
@dynamic addRedButton;
@dynamic showAlert;
@dynamic dismissAlert;
@dynamic addTextFieldTwo;

/**********************************************************************/
#pragma mark - OverWrite Methods
/**********************************************************************/

- (void)awakeFromNib{
    self.textFields = [NSMutableArray array];
    self.buttons = [NSMutableArray array];
    self.actions = [NSMutableArray array];
    
    [super awakeFromNib];
}

- (void)layoutSubviews{
    CGFloat localtionY = 20;
    if (self.titleLabel != nil) {
        CGRect frame = self.titleLabel.frame;
        frame.origin.y = localtionY;
        [self.titleLabel setFrame:frame];
        localtionY += frame.size.height + 10;
    }
    
    if (self.messageView != nil) {
        CGRect frame = self.messageView.frame;
        frame.origin.y = localtionY;
        [self.messageView setFrame:frame];
        localtionY += frame.size.height + 15;
    }
    
    if (self.textFields.count > 0) {
        CGRect frame = CGRectInset(self.bounds, 20, 20);frame.size.height = 30;
        for (UITextField *textField in self.textFields) {
            frame.origin.y = localtionY;
            [textField setFrame:frame];
            localtionY += frame.size.height + 5;
        }
        localtionY += 10;
    }
    
    if (self.buttons.count > 0) {
        CGRect frame = CGRectInset(self.bounds, 20, 20);frame.size.height = 35;
        if (self.buttons.count == 2) {
            frame.origin.y = localtionY;
            frame.size.width = (frame.size.width-8)/2;
            
            UIButton *button = [self.buttons objectAtIndex:0];
            [button setFrame:frame];
            
            button = [self.buttons objectAtIndex:1];
            frame.origin.x = frame.origin.x + frame.size.width + 8;
            [button setFrame:frame];
            
            localtionY += frame.size.height + 20;
        } else {
            for (UIButton *button in self.buttons) {
                frame.origin.y = localtionY;
                [button setFrame:frame];
                localtionY += frame.size.height + 5;
            }
            localtionY += 15;
        }
    }
    
    CGRect alertFrame = self.frame;
    alertFrame.size.height = localtionY;
    [self setFrame:alertFrame];
    [self setCenter:[self centerWithAnimation:kAlertAnimationFade]];
}

/**********************************************************************/
#pragma mark - Private Methods
/**********************************************************************/

- (AlertBlockF)setTitle{
    return ^MessageAlert *(NSString *format,...) {
        if (format) {
            va_list args;
            va_start(args, format);
            NSString *title = [[NSString alloc] initWithFormat:format arguments:args];
            UIFont *font = [UIFont boldSystemFontOfSize:17];
            
            CGRect frame = CGRectInset(self.bounds, 20, 20);
            CGSize size = [title sizeWithFont:font byWidth:frame.size.width];
            frame.size.height = size.height<20?20:size.height;
            
            if (_titleLabel == nil) {
                _titleLabel = [[UILabel alloc] init];
                _titleLabel.numberOfLines = 99;
                _titleLabel.font = font;
                _titleLabel.textColor = [UIColor blackColor];
                _titleLabel.textAlignment = NSTextAlignmentCenter;
                _titleLabel.backgroundColor = [UIColor clearColor];
            }
            _titleLabel.text = title;
            _titleLabel.frame = frame;
            [self addSubview:_titleLabel];
        } else {
            [_titleLabel removeFromSuperview];
            _titleLabel = nil;
        }
        return self;
    };
}

- (AlertBlockF)setMessage{
    return ^MessageAlert *(NSString *format,...){
        if (format) {
            va_list args;
            va_start(args, format);
            NSString *message = [[NSString alloc] initWithFormat:format arguments:args];
            UIFont *font = [UIFont systemFontOfSize:15];
            
            CGRect frame = CGRectInset(self.bounds, 20, 20);
            CGSize size = [message sizeWithFont:font byWidth:frame.size.width];
            frame.size.height = MAX(size.height, 20);
            
            if (_messageView == nil) {
                _messageView = [[UIScrollView alloc] init];
                [_messageView addSubview:_messageLabel];
            }
            _messageView.contentSize = CGSizeMake(frame.size.width, frame.size.height);
            _messageView.frame = CGRectMake(frame.origin.x, frame.origin.y, frame.size.width, MIN(frame.size.height, 120));
            
            if (_messageLabel == nil) {
                _messageLabel = [[UILabel alloc] init];
                _messageLabel.numberOfLines = 99;
                _messageLabel.font = font;
                _messageLabel.textColor = [UIColor blackColor];
                _messageLabel.textAlignment = NSTextAlignmentCenter;
                _messageLabel.backgroundColor = [UIColor clearColor];
                
            }
            _messageLabel.frame = CGRectMake(0, 0, frame.size.width, frame.size.height);
            _messageLabel.text = message;
            
            [_messageView addSubview:_messageLabel];
            [self addSubview:_messageView];
            va_end(args);
        } else {
            [_messageLabel removeFromSuperview];
            _messageLabel = nil;
            [_messageView removeFromSuperview];
            _messageView = nil;
        }
        return self;
    };
}

- (AlertBlockT)addTextField{
    return ^MessageAlert *(NSString *placeholder, NSString *text){
        CGRect frame = CGRectInset(self.bounds, 20, 20);
        UITextField *textField = [[UITextField alloc] initWithFrame:frame];
        textField.backgroundColor = RGB(237, 237, 237);
        textField.font = [UIFont systemFontOfSize:15];
        textField.rightViewMode=UITextFieldViewModeAlways;
        textField.textAlignment = NSTextAlignmentLeft;
        textField.borderStyle = UITextBorderStyleNone;
        textField.placeholder = placeholder;
        textField.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter;
        textField.text = text;
        textField.delegate = self;
        [self addSubview:textField];
        [self.textFields addObject:textField];
        return self;
    };
}

- (AlertBlockH)addTextFieldTwo{
    return ^MessageAlert *(NSString *placeholder, NSString *text, NSString *unit){
        CGRect frame = CGRectInset(self.bounds, 20, 20);
        UITextField *textField = [[UITextField alloc] initWithFrame:frame];
        textField.backgroundColor = RGB(237, 237, 237);
        textField.font = [UIFont systemFontOfSize:15];
        textField.rightViewMode=UITextFieldViewModeAlways;
        textField.textAlignment = NSTextAlignmentLeft;
        textField.borderStyle = UITextBorderStyleNone;
        textField.placeholder = placeholder;
        textField.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter;
        textField.text = text;
        textField.delegate = self;
        
        UILabel *rightLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 30, 30)];
        [rightLabel setTextColor:[UIColor darkGrayColor]];
        [rightLabel setBackgroundColor:textField.backgroundColor];
        [rightLabel setText:unit];
        [textField setRightView:rightLabel];
        
        [self addSubview:textField];
        [self.textFields addObject:textField];
        return self;
    };
}




- (AlertBlockB)addRedButton{
    return ^MessageAlert *(NSString *title, void (^action)(MessageAlert *)) {
        CGRect frame = CGRectInset(self.bounds, 20, 20);
        UIButton *button = [[UIButton alloc] initWithFrame:frame];
        button.backgroundColor = [UIColor clearColor];
        button.titleLabel.textColor = [UIColor whiteColor];
        button.titleLabel.font = [UIFont boldSystemFontOfSize:15];
        [button setTitle:title forState:UIControlStateNormal];
        [button setBackgroundImage:[UIImage rButtonNormalImage] forState:UIControlStateNormal];
        [button setBackgroundImage:[UIImage rButtonHighlightImage] forState:UIControlStateHighlighted];
        [button addTarget:self action:@selector(buttonAction:) forControlEvents:UIControlEventTouchUpInside];
        [self addSubview:button];
        [self.buttons addObject:button];
        if (action != nil) {
            [self.actions addObject:action];
        } else {
            [self.actions addObject:^(MessageAlert *alert){
                [alert dismiss];
            }];
        }
        return self;
    };
}

- (AlertBlockB)addBlueButton{
    return ^MessageAlert *(NSString *title, void (^action)(MessageAlert *)) {
        CGRect frame = CGRectInset(self.bounds, 20, 20);
        UIButton *button = [[UIButton alloc] initWithFrame:frame];
        button.backgroundColor = [UIColor clearColor];
        button.titleLabel.textColor = [UIColor whiteColor];
        button.titleLabel.font = [UIFont boldSystemFontOfSize:15];
        [button setTitle:title forState:UIControlStateNormal];
        [button setBackgroundImage:[UIImage bButtonNormalImage] forState:UIControlStateNormal];
        [button setBackgroundImage:[UIImage bButtonHighlightImage] forState:UIControlStateHighlighted];
        [button addTarget:self action:@selector(buttonAction:) forControlEvents:UIControlEventTouchUpInside];
        [self addSubview:button];
        [self.buttons addObject:button];
        if (action != nil) {
            [self.actions addObject:action];
        } else {
            [self.actions addObject:^(MessageAlert *alert){
                [alert dismiss];
            }];
        }
        return self;
    };
}

- (AlertBlockA)showAlert{
    return ^(AlertAnimation animation){
        [self showWithAnimation:animation];
        return self;
    };
}

- (AlertBlockA)dismissAlert{
    return ^(AlertAnimation animation){
        [self dismissWithAnimation:animation];
        return self;
    };
}

/**********************************************************************/
#pragma mark - Public Methods
/**********************************************************************/

+ (instancetype)alert{
    return [[MessageAlert alloc] initWithFrame:CGRectMake(0, 0, 270, 75)];
}

- (UITextField *)textFieldAtIndex:(NSUInteger)index{
    if (index<self.textFields.count) {
        return [self.textFields objectAtIndex:index];
    }
    return nil;
}
- (UIButton *)buttonAtIndex:(NSUInteger)index{
    if (index<self.buttons.count) {
        return [self.buttons objectAtIndex:index];
    }
    return nil;
}

/**********************************************************************/
#pragma mark - UIButton Action
/**********************************************************************/

- (void)buttonAction:(UIButton *)button {
    NSInteger index = [self.buttons indexOfObject:button];
    void (^action)(MessageAlert *) = [self.actions objectAtIndex:index];
    action(self);
}

/**********************************************************************/
#pragma mark - UITextFieldDelegate
/**********************************************************************/

- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string{
    if ([string isEqualToString:@"\n"]) {
        [textField resignFirstResponder];
        return YES;
    }
    if ([string isEqualToString:@""]) {
        return YES;
    }
    
    return YES;
}

@end